Soft soil foundation reinforcing compaction pile construction device

Abstract

The invention discloses a soft soil foundation reinforcing compaction pile construction device, and belongs to the technical field of building construction. A hammering mechanism of the compaction pile construction device and a pore-forming pile pipe are coaxially arranged, and the hammering mechanism can enter the pore-forming pile pipe; a first connecting shaft is arranged at the bottom of a first bearing table, and the hammering mechanism can enter the hole-forming pile pipe to hammer the first bearing table; a pile bottom tamping hammer is located in the hole-forming pile pipe, a second connecting shaft is arranged on the top of the pile bottom tamping hammer, and a spring is arranged between the first connecting shaft and the second connecting shaft. A fixed seat is fixed at the bottom of the first bearing table; horizontal impact hammers are connected with the fixed seat through connecting push rods, the upper ends of the connecting push rods are hinged to the fixed seat, the lower ends of the connecting push rods are hinged to the ends, close to a central shaft of the hole-forming pile pipe, of the horizontal impact hammers, and through holes allowing the horizontal impact hammers to penetrate out are formed in the hole-forming pile pipe. According to the compaction pile construction device, the soft soil foundation and lime soil compaction piles are connected through side holes filled with a lime soil, and integrity and the unity of connection of the soft soil foundation and the lime soil compaction piles can be improved.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a construction device for reinforcing compaction piles on soft soil foundations. Background technique [0002] With the vigorous development of my country's transportation construction industry, the construction of high-speed railways and expressways is steadily advancing. These high-standard, high-load, high-speed engineering projects have higher requirements on the bearing capacity of the foundation. On the one hand, the foundation is required to be stable; on the other hand, the post-construction settlement is required to meet the requirements of relevant specifications. During engineering construction, it was found that in some areas, weak soil layers with high water content, high compressibility, low strength and poor bearing capacity are distributed, that is, soft soil foundation. Under the action of the upper load, the soft soil foundation is prone to proble...

AI Technical Summary

Problems solved by technology

However, there is a regular and obvious contact surface between the compaction pile and the soft soil foundation on the side wall, and the surrounding soft soil will form active earth pressure on the compaction pile, and then produce concentrated extrusion on the compaction pile, which is likely to cause compaction The piles tilt and settle, and even reduce their strength, which in turn affects the effect of compaction piles on soft ground

Images